Genuine OEM Audi Catalyst Seal Gasket, part number 4G0253115C. This gasket is specifically designed to create a tight, leak-proof seal at the connection point of the catalytic converter within the exhaust system. It is positioned to ensure exhaust gases flow efficiently through the converter without leakage. Constructed from durable metal, it measures approximately 125mm in length and 95mm in width. Using a genuine OEM gasket ensures precise fitment and material integrity, crucial for withstanding high temperatures and vibrations in the exhaust system and maintaining emissions compliance.